Time to end the ‘uncontrolled experiment’ of social media on kids, scientists say
Summary
Social psychologists Jonathan Haidt and Zachary Rausch argue in chapter three of the 2026 World Happiness Report that the accumulated evidence shows social media is harmful to adolescents (aged 10–19). Their contribution is a metastudy: they reviewed academic research, public documents from platforms, and testimony from young people, parents, teachers and clinicians. They conclude the preponderance of evidence indicates social media is not safe for adolescents and that harms extend beyond isolated cases to population-level impacts.
The authors cite internal documents from major platforms (Meta, TikTok, Snap) suggesting companies were aware of risks to young users. They reference cross-sectional and longitudinal studies linking heavy social media use to increased risk of depression, and experiments showing that reducing social media time tends to increase reported wellbeing. Using population estimates, they extrapolate potential national-scale harms and recommend stronger regulation — even suggesting countries follow Australia by restricting adolescent access until brains mature, and regulating platforms like tobacco or alcohol.
Key Points
- Haidt and Rausch present a metastudy in the 2026 World Happiness Report concluding social media is unsafe for adolescents.
- They reviewed academic papers, platform documents, and testimony from young people, parents, teachers and clinicians.
- Internal documents from Meta, TikTok and Snap are cited as evidence platforms knew about harms to young users.
- Cross-sectional and longitudinal studies link heavy adolescent social media use with higher depression risk; experiments reducing use generally improve wellbeing.
- The authors estimate population-level impacts in the US (eg ~4 million adolescents with addiction-like issues; ~5.7 million experiencing unwanted sexual advances in a given week) to argue harms are widespread.
- The report recommends stronger regulation — including limiting access for underage users, modelled on Australia, and treating platforms like regulated products.
Context and Relevance
This piece sits at the intersection of public health, tech policy and child welfare. It synthesises existing research and internal industry documents to push beyond individual case reports toward claims of population-level harm. Policymakers, educators, clinicians and parents should note the escalating call for regulation and the framing of social media exposure as a large‑scale social experiment that should be halted or constrained.
For the tech industry, this adds to growing legal and regulatory pressure already visible in lawsuits and government advisories. For schools and health services, the report further validates concerns about mental health trends among adolescents and supports interventions that reduce platform exposure.
Why should I read this?
Short version: these two did the reading so you don’t have to. If you care about kids, policymaking or just want to know whether the ‘scroll-and-swipe’ era has measurable harms, this is the clear, evidence-backed case saying it’s more than anecdote — it’s a population problem. Plus, it lays out a blunt policy ask: stop the experiment and regulate.
Source
Source: https://www.theregister.com/2026/03/19/social_media_bad_for_kids/
